Sash control for sliding windows



Jan. 23, 1934. I B. E MYERS 1,944,450

SASH CONTROL FOR SLIDING WINDOWS Filed Aug. 13, 1932 A l I l 81/52 Z; 44 Jaw/M r 23 22 .27. fizyers Patented Jan. 23, 1934 wires srarss orrics Sioux Metal Products Company, Sioux City, Iowa, a corporation of Iowa Application August 13, 1932.

11 Claims.

The object of my invention is to provide a sash control of very simple construction, particularly adapted for ordinary double hung windows assembled in a frame in connection with metal weatherstrips without the use of sash weights or springs.

More particularly, it is my purpose to provide in combination with sashes and a frame and Weatherstrip elements mounted on the sashes and the frame for sliding joint forming connection a simple control device for each side of each sash for insuring sufficient friction between the Weatherstrip members on the sash and the Weatherstrip members on the frame to maintain the sash in any adjusted position.

A further object is to provide such control device which will preferably cause little or no friction when the sash is moved up, .but will cause enough friction when the sash is moved down, or starts to move down, to hold it in place.

A further object is to provide such a control device having means for rendering it inoperative. 7

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my sash control for sliding windows, whereby the objects contemplated areattained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawing, in which:

Figure 1 is an inside elevation of a Window equipped with Weatherstrip and control means embodying my invention.

Figure 2 is a detail, sectional View taken on the line 2-2 of Figure 1.

Figures 3 and 4 are detailed, sectional views taken on the line 33 of Figure 1, illustrating the control member in different positions of its 49 movement.

Figure 5 is a detail, sectional viewtaken on the line 55 of Figure 1.

Figure 6 is a perspective View of the parts of the control disassembled.

' Figure '7 is a sectional View on the line 7-7 of Figure l, the Weatherstrip members being omitted; and

Figure 8 is an elevation of one corner of the sash and frame, parts being cut away and parts being shown in section to illustrate the means for eliminating friction on wood parts.

In the accompanying drawing, I have used the reference -numeral if) to indicate generally the frame of a window in which are mounted the double hung sashes 11 and 12. 7

Serial No. 628,687

Referring now to Figures 2 and 7, I have used the reference numeral 14 to indicate the side jamb of the frame and the reference numeral'lfi to indicate the stiles of the sashes 12.

The removable stops are not shown with any 60 particularity, but it will, of course, be understood that they are provided on the jambs.

Where my controlis used, I preferably employ sash stiles having in their side edges vertical grooves 18. I also prefer to use Weatherstrip members on the jamb and sash respectively, one of which has a channel receiving the other.

in the drawing herewith, the frame weatherstrip is indicated at .A and the sash Weatherstrip at B. The frame Weatherstrip A consists of an v upright-strip member 20 fastened to the jamb as by nails or the like 22, having a right-angled extension 24 projected into the groove 18 with its extreme edge bent over as at 25, spaced from and parallel to the portion 24 to form therewith 76 an outwardly opening channel. 7

The sash Weatherstrip member B consists of an upright strip 26 fastened to the edge of the sash as by nails 2'7 and having a right-angled extension portion 28 projected into the channel 80 above-described. The portion 28 is preferably somewhat Wavy in horizontal cross section as illustrated.

The weatherstrips are somewhat resilient to attain the desired results.

The Weatherstrip B extends co-extensive with the length of the sash and the Weatherstrip A for coacting with the upper sash extends slightly below the upper sash when the latter is raised, while the Weatherstrip B for the lower sash extends slightly above the lower sash when the latter is lowered, as illustrated by the dotted lines in Fig-' ure 1. 1

These weatherstrips afford a means for providing a weathertight joint between the sash and the framejarnb.

The Weatherstrips are so constructed as to engage each other frictionally. In order that the degree of this friction may be controlled so that a sash may be moved to any position and will then be automatically held there, I provide the following control means for each side of each sash.

Inset'into the side of each sash is a channelshaped member indicated at C'in Figure 6. The channehshaped member 0 comprises the side members 29 and 30 connected at one'edge by the member 31, which has the offset flange 32. The members 29 and 30 are preferably provided with iii-turned flanges 29a and 30d at their edges oppo-' site the connecting member 31. The member 32 ever that may be desirable.

has a screw hole 32a. The sash is cut out to receive the channel-shaped member C.

I will now describe the manner in which the member C is set in the sash. Let me use for illustration the upper left-hand corner of the upper sash in Figure 1. The member C is set in from the left-hand side and moved toward the right into the socket and the cord provided for it. The left-hand edges of the members 29 and 30 are left flush with the side edge of the sash as shown in Figure 2. The wall 30 of the channel-shaped member C is provided with in-curved horizontally spaced pairs of tongues 34 and 35 to receive one edge of what for convenience may be called the latch bar D. This edge is preferably rounded as indicated at 36. It has a vertical notch near its center as at 38. The wall 30 has an in-punched portion 39 adapted to be received in the notch 38 for preventing lengthwise movement of the latch bar D when the latter is installed.

The latch bar D is intended to rock up and down. Its upper rocking movement is limited by the flange 29a.

Interposed between the lower face of the rocking bar D. and the connecting member 30 is a spring 40 (see Figure 5) Seated in the upper part of the spring 40 is a spring seat 41. For providing adjustment for controlling tension of the spring, I mount a threaded screw or the like 42 in the latch bar D to coact with a socket 41a in the seat 41 as illustrated for instance in Figure 5. A lock nut 43 is mounted on the screw 42 to coact with the latch bar D. That portion of the latch bar D which projects into the slot 18 of the sash is provided with a slot 44, as shown in Figure 2 to receive the channel formed on the Weatherstrip member A. The parts are so proportioned and shaped that when the latch bar D is in horizontal position as for instance illustrated in Figure 4, the latch bar slides freely with relation to the Weatherstrip members when the sash is moved up and down, but when the spring 40 tends to swing the latch bar D upwardly beyond horizontal from the position shown in Figure 4 to the position shown in Figure 3, the parts of the latch bar on the opposite sides of the slot 44 tend to bind against the walls of the channel of the weatherstrip member 14, as illustrated for instance in Figure 3. The degree of friction thus produced may I be regulated by varying the position of the screw 42. When the window sash is pushed up, the friction of the latch bar D with the channel of the Weatherstrip A tends to move the latch bar toward horizontal position against the tension of the spring 40, whereupon the latch bar will offer practically no resistance to raising the window. The direction of movement of the sash is indicated in Figure 3 by the full line arrows 45.

On the other hand, when the window sash is moved down, the tendency is to grip the weatherstrip more tightly between the walls of the slot 44, so that there is no danger of the sash ever dropping accidentally, although even in this tilted position of the latch bars the sash can still be low- 1 ered by pushing hard enough. The spring so may be omitted if desired. The latch bar D mi ht perhaps be called a gripping bar.

I have provided a means for moving the latch bars D to horizontal position temporarily when- These means I will now describe.

A push button 46 is slidably mounted in the wall of the sash and projects into the slot or socket 4'? in which the channel-shaped member C is mounted. The wall is provided with a hole 48 and the wall 29 of the member C is provided with a hole 49 to admit the inner end of the push button 46. On the push button 46 is a collar 50. A spring 51 is interposed between the collar and the wall 29 as shown for instance in Figure 2. A plate 52 is mounted on the outer face of the sash outside the collar 50 and is provided with a hole 53 to slidably receive the outer end of the push button 46, and has suitable screw holes 54 to receive screws to hold the plate 52 in place.

The latching bar D is engaged by the inner end of the push button 46, which is rounded as at 50a.

The latching bar may be provided with a slot 55 if desired to receive the inner end of the push button. The push button is so arranged that when in its normal position, the latching bar D will be held raised, so that it will bind on the Weatherstripping as shown in Figure 3.

When the push button 46 is pushed inwardly as shown for instance in Figure 4, the latching bar D is forced downwardly to substantially horizontal position where it will not bind on the weatherstripping.

The slot 18 in the sash need not be so wide as shown in Figure '7. The'slot 4'7 for the member C is wider and is considerably deeper than the slot 18, but, of course, extends vertically only a short distance. However, regardless of the width of the slot 18, it is entirely closed by the weatherstrip members.

I have experienced little diiiiculty, in the great majority of instances, with binding of the sash. If it is desired to provide positive means for assuring metal to metal contact only, the structure illustrated in Figure 8 may be employed. At the top of each sash is a flat spring 60, fastened to the bottom of the channel 18 of the sash and curved to resiliently bear against the bottom'of the channel 25 of the Weatherstrip A on the frame. These springs tend to resiliently center the sash from the sides and to insure a full floating sash.

Because they are short, they do not cause enough friction to interfere with the operation of the sash. Although located at the top of the sash only, they properly center the sash there and it will then hang properly centered.

The springs 60 might be made to frictionally slide on the frame, but I prefer the structure shown.

The resilience of the Weatherstrip members and the fact that they form a weathertight joint makes it possible to fit the sash more loosely than would otherwise be desirable, so that under no conditions of moisture or dampness will the sash bind in the frame.

The wall 25 of the channel formed on the Weatherstrip member A is short enough to allow for any shrinkage of the sash away from the j amb toward the opposite jamb.

The Weatherstrip members form guides for always holding the sash in position and for preventing rattling of the sash.

By means of the control herein provided, the elimination of all sash weights and pulley and ropes is made possible. No springs are needed.

t will be understood, however, that my improved control and Weatherstrip may be used with either springs or sash weight counterbalancing means, if counterbalancing means are desirable in the case of very large or heavy sash. For ordinary house windows, no counterbalancing means are necessary. The sash can be adjusted to any posiother counterbalancing means, and which provides suitable we'athertight joints formed by metal members so engaging each other that there is no danger-of any binding on account of Swelling or shrinking.

The sash can be made of the proper size so that they will never bind in the frame. The sash can be pushed up or down with astructure of this kind, but if it is desired to relieve any binding during the raising or lowering of the sash that re sult can be accomplished by pushing'thepush buttons and moving the latching bars to position where they do not bind on the channel of the Weatherstrip A secured. to the jambs.

It is obvious that changes may be made in the details of the construction and arrangement of my improved control, and it is myintention to cover by my claims any modified forms of structure or use of mechanical equivalents, which may be included Within their scope.

I claim as my invention:

1. In a sash holding structure, Weatherstrip elements adapted to be mounted on a frame member, Weatherstrip elements adapted to be mounted on a sash member, one of said elements having a channel and the other having a part slidably projected into the channel for guiding and positioning the sash, a gripping bar adapted to be mounted on the member having the part having a slot to receive the channel portion of the Weatherstrip, said latching bar being mounted to rock toward and from horizontal position, it being so arranged that when in horizontal position it will not bind the Weatherstrip elements, but when rocked out of horizontal position, it will tend to bind the Weatherstrip channel between the opposite faces of its slot, the movement of the sash upward tending to move the bar to horizontal position and the downward movement of the sash tending to move the bar to gripping position.

2. A sash control, adapted to cooperate with a window frame and a sash slidably mounted therein, Weatherstrip elements on the frame,

:weatherstrip elements on the sash, the element on the sash having a channel and the other having a member slidably projecting into the channel, said control including a latching bar adapted to be mounted on the sash having a slot to receive the channel portion of the Weatherstrip, said latching bar being mounted to rock toward and from horizontal position, it being so arranged that when in horizontal position it will not bind the Weatherstrip element, but when rocked out of horizontal position, it will tend to bind the Weatherstrip channel between the opposite faces of its slot, and spring means tending to hold the latching bar in position for binding with relation to the Weatherstrip, and independent means for moving the latching bar to non-binding position and adjustable means for regulating the spring tension on the bar.

3. A sash control adapted to cooperate with a window frame and a sash slidably mounted there- 'in, Weatherstrip elements on the frame, weathernot bind the Weatherstrip elements, but when rocked out of horizontal position, it will tend to bind the Weatherstrip channelbetween the opposite faces of its slot, and spring means tending to hold the latching bar in position for binding with relation to the Weatherstrip, independent means for moving the latching bar to non-binding position, said means comprising a push button adapted to engage the latching bar, and spring means for normally holding the push buttonfin' inoperative position.

4. In a structure of the kind described, the combination of a window frame and asash slidably mounted therein, Weatherstrip elements mount-' edrespectivelyon the frame and sash and having respectively a channel and a member sliding in the channel for positioning and guiding the sash, a latching bar carried by the sash, having a slot receiving said channel and adapted'when in horizontalposition to permitthe free sliding of the sash and when moved out of horizontal position to bind on the channel, to frictionally resist sliding movement of the sash in the frame.

5. In a structure of the kind described, for use with a window frame and a sash slidably mounted therein, Weatherstrip elements adapted to be mounted respectively on the frame and sash and having respectively a channel and a member sliding in the channel for positioning and guiding the sash, a latching bar adapted to be carried by the sash, having a slot receiving said channel and adapted when in horizontal position to permit the free sliding of the sash and when moved out of horizontal position to bind on the channel, a spring means for holding the latching bar normally in latching position, and means for rendering said last-named means inoperative.

6. In a device of the class described, for use with a Window frame with a window sash slidably mounted therein, Weatherstrip members adapted to be mounted respectively on the sash and frame for yielding, coacting sliding engagement, for guiding and positioning the sash, independent means adapted to be carried by the sash tending to yieldingly engage and bind the Weatherstrip carried by the frame.

7. In a structure of the kinddescribed, for use with a frame with a sash slidably mounted therein having vertical grooves in its side edges, Weatherstrip elements adapted to be mounted on the frame and having oppositely opening channel-shaped portions for projecting into the grooves of the sash, Weatherstrip members adapted to be carried by the sash having portions snugly and slidably received in said channels, for positioning and guiding the sash a latching bar for each side of the sash adapted to rock on a horizontal axis and having a slot to receive one of said channels and adapted to bind on such channel when in a certain position, and yielding position.

8. In a structure of the kind described, the combination of a frame with a sash slidably mounted therein having vertical grooves in its side edges, Weatherstrip elements mounted on the frame and having oppositely opening channelshaped portions projecting into the grooves of the sash, Weatherstrip members carried by the sash having portions snugly and slidably received in said channels, for positioning and guiding the sash a latching bar at each side of, the sash adapted to'rock on a horizontal axis, and having a slot to receive one of said channels and adapted to bind on such channel when in a certain position, yielding means for holding each latching bar in binding position, and manually operable means for rendering said latching means inoperative.

9. In a structure of the kind described, for use with a frame with a sash slidable therein, re-

silient metal weather strip elements adapted to the holder is slid upwardly ittends to release and when it is slid downwardly it tends to grip more tightly, and whenever it grips it tends to force the Weatherstrip elements together, to contribute to their engagement for protection against the weather.

11. A sash control, a Weatherstrip element adapted to be mounted on a frame including a projecting channel-shaped member, a weather strip element adapted to be mounted on a sash including a member slidably and frictionally pro jecting into the channel, a locking bar adapted to be rockably supported on the sash and having a slot for receiving the channel and adapted in certain positions of the locking bar to bind the channel for thereby locking the sash against movement and also tending to cause the channel to more tightly frictionally engage the member projecting thereinto.

BON E. MYERS. 

